DE102004048835B4 - Rivet or screw connection of a plastic part with another part - Google Patents

Abstract

Rivet- or screw connection (1) of a first component (2) with a second Component (3), wherein in the first and in the second component corresponding first (4) and second (5) through holes are arranged, the from the shaft (7) of a rivet (6) or screw are penetrated and the rivet (6) or screw on both sides of the adjacent openings (4, 5) a rivet head (8) or screw head or nut with a Diameter larger than that Diameter of the openings (4, 5), wherein at least the first component (2) in the range the rivet (6) or screw a pot-like depression (10) in the direction of the second component (3), on whose bottom (12) the first Through opening (4) is arranged, characterized in that the wall (11) of the cup-shaped depression (10) of the first and / or second component, between the bottom (12) of the recess (10) and the the recess (10) to the outside subsequent Area of the respective first or second component (2), one over their...

Description

The The present invention relates to a rivet or threaded connection for connecting two components. Such compounds are used in particular in Area of vehicle construction, especially in motor vehicle construction used.

To the Connecting two components, different connection methods are suitable. For one thing the components glued together in appropriate places or welded or soldered. To be a detachable To create a connection, screw connections are also used, where a screw through mutually arranged openings inserted in the two components and with a nut or a Riveting nut is countered. Another alternative for a detachable connection are Rivet joints where instead of a screw a rivet through the aligned passage openings in the two to be connected Pushed through components and then compressed. The rivet itself has at one of its ends a rivet head due to its widening opposite the rivet shank and the component openings setting the rivet on one side of a component. By the compression At the other end of the rivet, a broadening is created here as below also be summarized under rivet head should. Because in principle it is possible the rivet with its shaft from one side or also from the the other side through the through holes in the components stuck and then put the compression on the other side. The decisive factor is that last on both sides of the through holes Spacers are present, which are the rivets in the through holes establish.

The Force introduction of each component in the connection via the respective rivet head, screw head or the nut and is through the size of the head certainly.

Rivet- and screw connections are conventionally in particular for connecting components made of metal, in particular of sheet metal, used.

The publication DE 23 52 181 A1 discloses a screw connection of a first component and a second component, wherein the screw is arranged at the bottom of a plate-like recess of the one component and passes through two aligned openings of the two components.

The publication CH 610,069 discloses a combination of plates of metal or plastic, wherein two superimposed plates are clamped together by means of screws or rivets, wherein in the area around the screws or rivets associated, similar, well matched, prefabricated anchors in the form of elevations / subsidence in both Plates are arranged which receive the forces to be transmitted from one plate to the other in the plane of the plate in the form of shear forces.

task the present invention is to provide a rivet or screw connection, which ensures a good application of force while at the same time high rigidity of the attachment point.

These Task is by a rivet or screw according to claim 1 solved. Advantageous developments of the rivet or screw connection according to the invention are in the respective dependent claims described.

The Invention provides a rivet or screw connection of a first Component with a second component, wherein in the first and in the second Component corresponding first and second through holes are arranged, which are penetrated by the shank of a rivet or screw are and where the rivet or screw on both sides of the adjacent openings a rivet head or screw head or nut with a diameter bigger the Diameter of the openings wherein at least the first component in the region of the rivet or screw a pot-like recess in the direction of the second component has, on the bottom of the first passage opening is arranged, wherein the wall of the pot-like recess of the first and / or second component, extending between the bottom of the well and the well outward subsequent Range of the respective first or second component extends, one over their Has circumference variable radius, and / or the wall along its Circumference has bulges and / or indentations.

A such pot-like depression can, if from the other side considered as a dome-like elevation of the first component, the opening is arranged in the roof of the cathedral.

By the cup-like depression or dome-like elevation results in a 3D structure, by a stiffening of a first component in the region of the rivets or screw is effected. Because the side walls of the pot-like Deepening stiffen the overall structure, vibrations around the connection point are thus reduced or avoided.

A particularly advantageous connection results from the fact that the Wall of the pot-like depression has no pure circular cross section, but for example in star geometry is executed. In this geometry is periodically the radius of the circumference of the wall along the Scope varies, so that bulges and indentations of the wall result. As a result, a connection surface is achieved, the same Size one Multiples, e.g. one and a half times, a circular wall equivalent. The contact path for the introduction of forces in the connection from the first component increases so much, so that transmit far greater forces can be.

One Another advantage of such a pot-like depression exists in that between the first component and the second component a distance is created that corresponds to the depth of the pot-like depression. For example, between the first component and the second Component seals arranged, for example as a ring seal order the cup-like depression, so can the height of the cup-like depression be adjusted so that the recess as a stopper (spacer) acts and the compression of the gasket when fixing the two components limited to each other. This makes possible, the corresponding seal within its elastic range to compress, ensuring a reliable seal is.

The inventive compound is very quick and easy to assemble and has a low Weight. Especially in comparison to the plastic sector so far prevailing screw results in a considerably simplified Assembly using a riveted joint according to the present Invention.

there are the compounds of the invention sufficiently waterproof, so that they are in every respect with previous ones Competing connections.

The inventive compound is used in particular for connecting at least one first Plastic component with a second component made of metal or also made of plastic or plastic can. In the field of plastic components are previously riveted joints not used because of technical difficulties.

is the diameter of the pot-like depression we considerably larger than the diameter of the rivet head, screw head or nut, so results from the larger size the wall of the depression compared with the circumference of the head a considerably longer one Line for the introduction of force from the connection in the component or vice versa. Though still finds the force from the rivet head, the screw or the mother in the bottom of the depression only in the area of the rivet head, the screw or the nut. To get a sufficient Force input here can therefore be the bottom of the recess across from reinforced to the rest of the first component. This has however Furthermore, the advantage that this material thickness only in the area the bottom of the depression increased will, while the material thickness can be kept low in the remaining area of the first component.

All in all So results from the connection in the first component with a long transition edge a big one Surface connection.

The transferable personnel are therefore no longer limited, so that vibrations of the first component repressed and cracks in the first component can be avoided. The compound of the invention is also strong mechanical effects, such as in the case of a collision of a vehicle with such compounds very stable on an object.

It is still not required for this connection as a riveted joint, a rivet sleeve in the through holes introduce. By such direct riveting results in a further manufacturing simplification and cost savings.

The Connection can of course not only for the first component having a pot-like depression, but Also, the second component may be carried out in a corresponding manner. Insofar that applies to the first component so far and in the following said as well for the second Component. It is therefore also possible that pot-like depressions of the first component and the second Component on their floors with the compounds of the invention get connected.

The inventive compound is used in particular for attaching functional modules, for example Windows or partitions between dry side and wet side in motor vehicles, in particular for fixing door modules Interior door panels. Of course is also the attachment to door outer panels or other elements possible. For door outer panels However, it follows that the compound of the invention to invisible or hidden areas should be arranged.

It An example of a riveted joint according to the invention will now be given. Show it

1 the cross section of a rivet joint according to the invention prior to upsetting the rivets;

2 a further cross section through such a riveted joint;

3 a plan view of a first component with a rivet connection according to the invention.

Here as follows are for same or similar Components the same or similar reference numerals used, so that may is waived their repeated description.

1 shows the cross section through a riveted joint 1 for connecting a first component 2 with a second component 3 , The two components 2 and 3 have mutually aligned passage openings (rivet openings) 4 respectively. 5 , Through these rivet openings 4 and 5 is a rivet 6 stuck with her rivet head 8th on the side facing away from the connection of the component 2 is applied and so the component 2 in his position.

The rivet is shown in unbestauchem state, so that the second broadening on the side facing away from the connection of the component 3 not visible. Such broadening may correspond to the rivet head 8th also be referred to as a rivet head.

The rivet 6 thus permeates with their riveting 7 the first opening 4 and the second opening 5 , In the present example, the axis 13 of riveting 7 perpendicular to the interface between the components 2 and 3 stands.

The component 2 has a pot-like depression 10 on, where from the component 2 only with this deepening 10 is shown. The component 2 extends from the top of this pot-like depression 10 laterally, this extension is not shown, but for example in 3 will be shown. The pot-like depression 10 owns a wall 11 around the axis 13 rotates conically. From this depression 10 is in cross section the 1 only a half shell shown. The depression 10 has a flat, flat bottom 12 on, the flat on the also in the rivet flat component 3 abuts and defines the interface. The wall 11 is wavy, so they bulges 15 and indentations 16 having. The cross-section of the wall in a plane perpendicular to the axis 13 thus has a star-shaped, flower-shaped or sand cake-shaped form. This star-shaped figure is the length of the wall 11 in cross section much larger than in a circular cross section. In the present example, this length is greater by a factor of 1.8 than in the case of a circular cross section, so that a contact distance between the ground that is extended by a factor of 1.8 is obtained 12 the recess and thus the rivet 6 and the rest of the component, not shown here 1 results. The introduction of force from the component into the rivet and vice versa is therefore considerably improved.

In this example of a door module 2 made of plastic is the diameter of the opening 4 7,5 mm, the diameter of the rivet shank 6,4 mm, the thickness of the floor 12 2.5 mm and the thickness of the component 3 0.8 mm.

2 shows the same rivet connection, but only the recess 10 and the not yet compressed rivet 6 are shown.

3 shows a door module 2 and a speaker element 3 that are interconnected.

The door module 2 has a pot here 10 on, the first rivet opening 4 has. This rivet opening 4 is located in the middle of the ground 12 of the pot 10 , The wall 11 in turn has bulges 15 and indentations 16 , so that a star-shaped cross-section of the wall 11 results. The door module 2 extends from the ground 12 opposite edge of the wall 11 laterally and parallel to the flat ground 12 outward. In this area are then the functional elements of the door module 2 , For example, the speaker element 3 or a window lift, attached.

In another example, according to the 1 to 3 the rivet is replaced by a screw and a nut, the mother in turn can be welded to the door inner panel or otherwise secured.

Claims (14)

Rivet or screw connection ( 1 ) of a first component ( 2 ) with a second component ( 3 ), wherein in the first and in the second component corresponding first ( 4 ) and second ( 5 ) Passage openings are arranged, which from the shaft ( 7 ) of a rivet ( 6 ) or screw are penetrated and whereby the rivets ( 6 ) or screw on both sides of the adjacent openings ( 4 . 5 ) a rivet head ( 8th ) or screw head or nut with a diameter greater than the diameter of the openings ( 4 . 5 ), wherein at least the first component ( 2 ) in the area of rivets ( 6 ) or screw a pot-like depression ( 10 ) in the direction of the second component ( 3 ), on whose bottom ( 12 ) the first passage opening ( 4 ), characterized in that the wall ( 11 ) of the pot-like depression ( 10 ) of the first and / or second component located between the floor ( 12 ) of the depression ( 10 ) and to the depression ( 10 ) to the outside adjoining area of the respective first or second component ( 2 ), has a radius variable over its circumference, and / or the wall (FIG. 11 ) along its circumference bulges ( 15 ) and / or recesses ( 16 ) having. Rivet or screw connection ( 1 ) according to the preceding claim, characterized in that the second component ( 3 ) in the area of rivets ( 6 ) or screw a pot-like depression in the direction of the first component ( 2 ), on whose bottom the second passage opening ( 5 ) is arranged. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the recess ( 10 ) of the first and / or second component has a diameter which is greater than the diameter of the on the side of the first component ( 2 ) arranged rivet head ( 8th ), Screw head or nut. Rivet or screw connection ( 1 ) according to the preceding claim, characterized in that the recess ( 10 ) has a diameter such that the wall ( 11 ) of the depression ( 10 ) from the rivet head ( 8th ), Screw head or nut is spaced. Rivet or screw connection ( 1 ) according to the preceding claim, characterized in that for the diameter d1 of the recess ( 10 ) in the area of their soil ( 12 ) and the diameter d2 of the rivet head ( 8th ), Screw head or nut applies: d1> 1.5 · d2, preferably d1> 2 · d2. Rivet or screw connection ( 1 ) according to claim 1, characterized in that the wall ( 11 ) along its circumference in a plane perpendicular to the axis of the rivet or screw shank ( 7 ) has a star-shaped cross-section. Rivet or screw connection ( 1 ) according to claim 1, characterized in that the wall ( 11 ) has such a cross-section along its circumference, so that the intersection between the wall ( 11 ) and one to the axis ( 13 ) of the riveting shaft ( 7 ) vertical plane at at least three first places a locally minimum distance from the axis ( 13 ) of the riveting shaft ( 7 ) and at at least three further points each arranged between the first three points a locally maximum distance to the axis ( 13 ) of the rivet or screw shank ( 7 ) having. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the bottom ( 12 ) of the depression ( 10 ) of the first and / or second component has a greater thickness than that outside the recess ( 10 ) to the wall ( 11 ) of the depression ( 10 ) subsequent areas of the respective first and / or second component ( 2 ). Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that in the first (4) and / or second (5) opening no rivet sleeve is arranged. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the first component ( 2 ) and / or the second component ( 3 ) at least partially made of plastic or contains plastic. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the recess ( 10 ) of the first and / or second component at least partially contains plastic or consists of plastic. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the second component ( 3 ) is a door inner panel of the door of a vehicle. Rivet or screw connection ( 1 ) according to one of the preceding claims, characterized in that the first component ( 2 ) is a door module, for example, a window or a partition between the wet side and the dry side of a door of a vehicle. Use of a rivet or screw connection ( 1 ) according to one of the preceding claims in vehicle construction, in particular in motor vehicle construction.